Shadow on the screen / change button-color

Hello Forum

Startscreen

On many sites, there is a shadow on the screen... it looks not so nice to me.
Where can I delete it?

Where can I change the color from the button and its text (only for the startscreen)?

Where can I edit/insert text over the signature?

I use the template "Arthur" and can't find the right place, where I can made this changes.

The shadow is from S5 Box module, I just disabled this module for you.

About the color for text and button, which color you want to change to? You can override with this custom css:

#s5_pos_custom_2 .readon {
  color: #333333 !important;
}

and change to your desired color + put the code into the file: ROOT/templates/arthur/css/custom.css (Create this file if it doesn't exist now)

Ok, thank you very much for your help :-)
This case is solved.